package be.phl.obstacleapp;

import java.util.ArrayList;
import java.util.List;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.database.Cursor;
import android.graphics.Point;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.Display;
import android.view.View;
import android.widget.ListView;
import be.phl.layoutAdapter.ScreeningItemRowAdapter;
import be.phl.layoutAdapter.ScreeningItemRowAdapter.ScreeningItemRow;
import be.phl.model.DBAdapterScreening;

/**
 * A list fragment representing a list of ScreeningRooms. This fragment also
 * supports tablet devices by allowing list items to be given an 'activated'
 * state upon selection. This helps indicate which item is currently being
 * viewed in a {@link ScreeningRoomDetailFragment}.
 * <p>
 * Activities containing this fragment MUST implement the {@link Callbacks}
 * interface.
 */
public class ScreeningRoomListFragment extends ListFragment {

	/**
	 * The serialization (saved instance state) Bundle key representing the
	 * activated item position. Only used on tablets.
	 */
	private static final String STATE_ACTIVATED_POSITION = "activated_position";

	/**
	 * The fragment's current callback object, which is notified of list item
	 * clicks.
	 */
	private Callbacks mCallbacks = sDummyCallbacks;

	/**
	 * key for arguments
	 */
	public static final String ARG_SCREENINGROOM_ID = "ScreeningRoomId";

	/**
	 * The current activated item position. Only used on tablets.
	 */
	private int mActivatedPosition = ListView.INVALID_POSITION;

	/**
	 * List with the roomitems
	 */
	private List<ScreeningItemRow> ITEMS = new ArrayList<ScreeningItemRow>();
	private static int ScreeningRoomId;
	ScreeningItemRowAdapter adapter;

	public List<ScreeningItemRow> getITEMS() {
		return ITEMS;
	}

	/**
	 * A callback interface that all activities containing this fragment must
	 * implement. This mechanism allows activities to be notified of item
	 * selections.
	 */
	public interface Callbacks {
		/**
		 * Callback for when an item has been selected.
		 */
		public void onItemSelected(int id, int position);

		public void onButtonClicked(int itemId, int action);

	}

	/**
	 * A dummy implementation of the {@link Callbacks} interface that does
	 * nothing. Used only when this fragment is not attached to an activity.
	 */
	private static Callbacks sDummyCallbacks = new Callbacks() {

		@Override
		public void onItemSelected(int id, int position) {
			// TODO Auto-generated method stub

		}

		@Override
		public void onButtonClicked(int itemId, int action) {
			// TODO Auto-generated method stub

		}
	};

	/**
	 * Mandatory empty constructor for the fragment manager to instantiate the
	 * fragment (e.g. upon screen orientation changes).
	 */
	public ScreeningRoomListFragment() {
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		try {
			ScreeningRoomId = getArguments().getInt(ARG_SCREENINGROOM_ID);

			DBAdapterScreening db = new DBAdapterScreening(getActivity());
			db.open();
			Cursor c = db.getAllScreeningItems(ScreeningRoomId);
			while (c.moveToNext()) {
				ITEMS.add(new ScreeningItemRow(c.getInt(0), c.getString(8)));
			}
			db.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
		adapter = new ScreeningItemRowAdapter(getActivity(), ITEMS);

		// set the adapter wich represents the screeningitems
		setListAdapter(adapter);

		adapter.mButtonCallback = new ScreeningItemRowAdapter.Callbacks() {

			@Override
			public void onButtonClicked(int itemId, int action) {

				mCallbacks.onButtonClicked(itemId, action);

			}
		};
	}

	@Override
	public void onViewCreated(View view, Bundle savedInstanceState) {
		super.onViewCreated(view, savedInstanceState);

		setActivateOnItemClick(true);

		// Restore the previously serialized activated item position.
		if (savedInstanceState != null
				&& savedInstanceState.containsKey(STATE_ACTIVATED_POSITION)) {
			setActivatedPosition(savedInstanceState
					.getInt(STATE_ACTIVATED_POSITION));
		}
	}

	@Override
	public void onAttach(Activity activity) {
		super.onAttach(activity);

		// Activities containing this fragment must implement its callbacks.
		if (!(activity instanceof Callbacks)) {
			throw new IllegalStateException(
					"Activity must implement fragment's callbacks.");
		}

		mCallbacks = (Callbacks) activity;
	}

	@Override
	public void onDetach() {
		super.onDetach();

		// Reset the active callbacks interface to the dummy implementation.
		mCallbacks = sDummyCallbacks;
	}

	@Override
	public void onListItemClick(ListView listView, View view, int position,
			long id) {
		super.onListItemClick(listView, view, position, id);

		// Notify the active callbacks interface (the activity, if the
		// fragment is attached to one) that an item has been selected.

		for (ScreeningItemRow item : ITEMS) {
			item.setSelected(false);
		}

		mCallbacks.onItemSelected(ITEMS.get(position).getId(), position);
		ITEMS.get(position).setSelected(true);
		adapter.notifyDataSetChanged();

	}

	@Override
	public void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);
		if (mActivatedPosition != ListView.INVALID_POSITION) {
			// Serialize and persist the activated item position.
			outState.putInt(STATE_ACTIVATED_POSITION, mActivatedPosition);
		}
	}

	/**
	 * Turns on activate-on-click mode. When this mode is on, list items will be
	 * given the 'activated' state when touched.
	 */
	public void setActivateOnItemClick(boolean activateOnItemClick) {
		// When setting CHOICE_MODE_SINGLE, ListView will automatically
		// give items the 'activated' state when touched.
		getListView().setChoiceMode(
				activateOnItemClick ? ListView.CHOICE_MODE_SINGLE
						: ListView.CHOICE_MODE_NONE);
	}

	private void setActivatedPosition(int position) {
		if (position == ListView.INVALID_POSITION) {
			getListView().setItemChecked(mActivatedPosition, false);
		} else {
			getListView().setItemChecked(position, true);
		}

		mActivatedPosition = position;
	}
	
	
}
